Re: LED Signal Speed

quikblue6 wrote:
I have a question, I'll be honest, I have no knowledge of electronics
seeing as how I haven't taken anything in it since College and that
was 4 years ago.

My question is, and hopefully someone can answer it, I have a
motorcycle of which I just installed LED signals. Now I guess the
LED's draw a lot less power making the system think that a bulb is
burnt out so it flashes twice as fast as normal. How would I fix
this problem and slow the LED's back down to normal speed? There are
12 LED's per signal.

Thanks
http://www.hardwareplug.com

I like Paul's idea. But if you want to build it yourself,
go here:
http://www.uoguelph.ca/~antoon/gadgets/555/555.html

Build the circuit in figure 5, substituting a 100K potentiometer
for R1 and R2, with the pot's center pin connected to pin 7 of
the 555. Where the diagram shows one LED and a 220 resistor
connected between pin 3 and ground, you will put 6 Leds in series
with a 150 ohm resistor. To run 12 LEDs, make another string of
6 LEDS in series with a 150 ohm resistor, and connect it from
pin 3 to ground, just like the first string. You omit the part
that shows an LED in series with a 220 resistor from pin 3 to (+).

Your circuit will run from the 12 V motorcycle battery. Add some transient protection this way: connect a 10 ohm, 10 watt resistor
to +12. Connect the other end of the resistor to pin 8 of the 555
and to the banded end of a 1.5KE15A-T transorb. The other end of
the transorb is connected to ground. The transorb is available
from Digikey - part #1.5KE15ADICT-ND Adjust the pot for the
desired blink rate.

Ed
.

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